18 Questions
What is the underlying mechanism of nerve conduction block due to hyperstimulation?
Slow Na channels
What theory explains the decrease in pain sensation through cutaneous thermoreceptors?
Gate control theory
What is a contraindication for superficial heat therapy in patients with demyelinating conditions?
Multiple sclerosis
What is the effect of heat therapy on muscle strength during the initial 30 minutes?
Decrease in muscle strength
What is the effect of heat therapy on enzymatic activity in the range of 39°C to 43°C?
Increase in enzymatic activity
What is the primary mechanism by which heat is transferred through conduction?
The direct contact between a warm surface and a cooler surface
What is the effect of heat therapy on the healing of articular cartilage in patients with rheumatoid arthritis?
Accelerate destruction
Which of the following is an example of a heat transfer method that does not require direct contact?
Radiation through an infrared lamp
What is the primary factor that affects the rate of heat transfer through conduction?
The surface area of contact between the two surfaces
Which of the following heat transfer methods involves the conversion of nonthermal energy into heat?
Conversion of ultrasound energy into heat
What is the primary mechanism by which topical analgesics provide heat to the muscles?
Conversion of chemical energy into heat
What is the primary advantage of using heat therapy to increase blood flow during healing?
It increases muscle strength
What is a crucial factor to consider when applying heat therapy to increase circulation?
Client's individuality
What is the primary mechanism by which heat therapy increases muscle strength?
Decreased neuromuscular inhibition
Which of the following is a metabolic effect of heat therapy?
Decreased cardiovascular workload
What is the primary reason for avoiding heat therapy in patients with cardiac risk factors?
Increased cardiac workload
According to the gate control theory, what is the mechanism by which heat therapy relieves pain?
Inhibition of pain transmission
What is a contraindication for superficial heat therapy?
Malignant tissue
Test your knowledge of the slowly responding vasodilator system, including the role of nitrous oxide, bradykinin, and the spinal cord in regulating blood vessels and muscle relaxation. Learn about the effects of superficial heating agents on muscle depth.
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